A concert-hall is a venue designed specifically for concerts and other musical performances. There are various synonyms for the term "concert-hall," each with its own connotation. A "music hall" is a large, grand venue known for hosting orchestral performances, while a "theatre" may also host musicals and plays. "Auditorium" generally refers to a larger venue that can accommodate a range of events, including speeches, lectures, and concerts. "Amphitheatre" and "arena" both have a more open design, which may be used for outdoor concerts or large-scale events. Finally, "opera house" refers specifically to a luxury venue for opera performances, complete with intricate decor and acoustics to match.